trovis 3730-1 electropneumatic positioner

T 8484-1 EN

SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, GermanyPhone: +49 69 4009-0 · Fax: +49 69 4009-1507 · [email protected] · www.samson.de

TROVIS 3730-1ElectropneumaticPositioner

ApplicationSingle-acting positioner for attachment to pneumatic globe and rotary valves. Self-calibrating, automatic adaptation to valve and actuator.

Setpoint 4to20mAValvetravel 3.5to300 mmOpeningangle 24to100°

Edition July 2021

Fig. 1: TROVIS 3730-1 Electropneumatic Positioner

The positioner ensures a predetermined assignment of the val-ve position to the input signal. It compares the input signal re-ceived from a control system to the travel or rotational angle of the control valve and issues a corresponding output signal pressure (output variable).

Specialfeatures• Simple attachment to all common linear and rotary actua-

tors:– SAMSON direct attachment– NAMUR rib– Attachment to rod-type yokes according to IEC 60534-

6-1– Attachment according to VDI/VDE 3847– Rotary actuator attachment according to VDI/

VDE 3845• Non-contact position sensing• LCD easy to read in any mounting position thanks to selec-

table reading direction• Simple one-knob, menu-driven operation• Confi gurable with a computer over the SSP interface using

the TROVIS-VIEW software• Variable, automatic start-up• All parameters saved in non-volatile EEPROM• Two-wire system with a small electrical load of 315 Ω• Tight-closing function can be activated• Continuous zero monitoring

2 T 8484-1 EN

1 Control valve2 Travel sensor3 A/D converter4 Microcontroller5 Pressure reducer6 Air capacity booster7 i/p converter8 D/A converter9 Communication interface10 Rotary pushbutton11 Display

M Available optionsM.1 Software limit contact (PLC/NAMUR)M.2 Position transmitterM.3 Inductive limit contacts (NAMUR)

I

I

E

EµC

#

w

1

34

8

7

9 10

yx

Serial Interface

12

12

13

14

14

652

Exhaust Supply 9 Output 38

%mm

%mm

S 11

Fig. 2: Block diagram

DesignandprincipleofoperationThe TROVIS 3730-1 Electropneumatic Positioner is mounted on pneumatic control valves and used to assign the valve posi-tion (controlled variable x) to the control signal (set point w). The positioner compares the electric control signal of a control system to the travel or opening angle of the control valve and issues a signal pressure for the pneumatic actuator.The positioner mainly consists of a non-contact travel sensor system (2), pneumatics and the electronics with the microcont-roller (4). The valve position is transmitted either as an angle of rotation or a travel to the pick-up lever, from there to the travel sensor (2) and forwarded to the microcontroller (4). The PID algorithm in the microcontroller compares the valve positi-on measured by the travel sensor (2) to the 4 to 20 mA DC control signal issued by the control system after it has been converted by the A/D converter (3).

In case of a set point deviation, the activation of the i/p mo-dule (7) is changed so that the actuator of the control valve (1) is pressurized or vented accordingly over the downstream booster (6). As a result, the closure member of the valve (e.g. plug) is moved to the position determined by the set point.The positioner is operated by a rotary pushbutton (9) for menu navigation on the display (11).

T 8484-1 EN 3

Technicaldata·TROVIS 3730-1Positioner

TravelAdjustable travel for Direct attachment to Type 3277: 3.5 to 30 mm

Attachment according to IEC 60534-6 (NAMUR): 3.5 to 300 mm

Attachment according to VDI/VDE 3847 3.5 to 300 mm

Attachment to rotary actuators: 24 to 100°

Travel range Adjustable within the initialized travel/angle of rotation of the valve; travel can be restricted to 1/5 at the maximum.

SetpointwSignal range 4 to 20 mA · Two-wire device, reverse polarity protection

Split-range operation: 4 to 11.9 mA and 12.1 to 20 mA

Static destruction limit ±33 V

Minimum current 3.6 mA for display · 3.8 mA for operation

Load impedance Without explosion protection: ≤6.6 V (corresponds to 330 Ω at 20 mA) Explosion-protected versions: ≤7.3 V (corresponds to 365 Ω at 20 mA)

SupplyairSupply air 1.4 to 7 bar (20 to 105 psi)

Air quality acc. to ISO 8573-1 Max. particle size and density: Class 4Oil content: Class 3Pressure dew point: Class 3 or at least 10 K below the lowest ambient

temperature to be expected

Signal pressure (output) 0 bar up to the supply pressure · Can be limited to 2.4 bar ±0.2 bar by software

Hysteresis ≤0.3 %

Sensitivity ≤0.1 %

Characteristic Linear/equal percentage/reverse equal percentage/SAMSON butterfly valve/VETEC rotary plug valve/segmented ball valve

Direction of action Reversible

Air consumption, steady state Independent of supply air approx. 65 ln/h

Air output capacity (when ∆p = 6 bar)

To fill actuator with air 8.5 mn³/h · At Δp = 1.4 bar: 3.0 mn³/h · KVmax(20 °C) = 0.09

To vent actuator 14.0 mn³/h · At Δp = 1.4 bar: 4.5 mn³/h · KVmax(20 °C) = 0.15

EnvironmentalconditionsandpermissibletemperaturesPermissible environmental conditions according to EN 60721-3

Storage 1K6 (relative humidity ≤95 %)

Transport 2K4

Operation

4K4–20 to +85 °C: All versions–40 to +85 °C: With metal cable glands–55 to +85 °C: Low-temperature versions with metal cable glandsObserve the limits in the test certificate for explosion-protected versions.

Resistance to vibration

Vibrations (sinusoidal)According to DIN EN 60068-2-6:0.15 mm, 10 to 60 Hz; 20 m/s², 60 to 500 Hz per axis0.75 mm, 10 to 60 Hz; 100 m/s², 60 to 500 Hz per axis

Bumps (half sine) According to DIN EN 60068-2-29:150 m/s², 6 ms; 4000 bumps per axis

Noise According to DIN EN 60068-2-64:10 to 200 Hz: 1 (m/s²)²/Hz; 200 to 500 Hz: 0.3 (m/s²)²/Hz; 4 h/axis

Recommended continuous duty ≤20 m/s²

InfluencesTemperature ≤0.15 %/10 K

Supply air None

RequirementsEMC Complying with EN 61000-6-2, EN 61000-6-3, EN 61326-1 and NAMUR Recommendation NE 21

Degree of protection IP 66/NEMA 4X

4 T 8484-1 EN

ElectricalconnectionsCable glands One M20x1.5 cable gland for 6 to 12 mm clamping range

Second M20x1.5 threaded connection additionally available

Terminals Screw terminals for 0.2 to 2.5 mm² wire cross-section

ExplosionprotectionATEX, IECEx, ... Refer to Table 1

MaterialsHousing and cover Die-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706, chromated and powder

paint coated · Special version: stainless steel 1.4408

Window Makrolon® 2807

Cable glands Polyamide, nickel-plated brass, stainless steel 1.4305

Other external parts Stainless steel: 1.4571 and 1.4301

WeightAluminum housing: approx. 1.0 kg · Stainless steel housing: approx. 2.2 kg

Optionaladditionalfunctions

PositiontransmitterVersion Two-wire system, galvanic isolation, reverse polarity protection, reversible direction of action

Auxiliary power 10 to 30 V DC

Output signal 4 to 20 mA

Operating range 2.4 to 21.6 mA

Error indication 2.4 or 21.6 mA

No-load current 1.4 mA

Static destruction limit 38 V DC · 30 V AC

Softwarelimitcontacts NAMUR PLCVersion Galvanic isolation, reverse polarity protection,

switching output acc. to EN 60947-5-6Galvanic isolation, reverse polarity protection, binary input of a PLC acc. to EN 61131-2, Pmax = 400 mW

Signal state≤1.0 mA (non-conducting) R = 10 kΩ (non-conducting)

≥2.2 mA (conducting) R = 348 Ω (conducting)

Static destruction limit 32 V DC/24 V AC 32 V DC/50 mA

InductivelimitcontactsVersion For connection to switching amplifier according to EN 60947-5-6, SJ2-SN proximity switches, reverse

polarity protection

Measuring plate not detected ≥3 mA

Measuring plate detected ≤1 mA

Static destruction limit 20 V DC

Permissible ambient temperature –50 to +85 °C

Table 1: Summary of explosion protection approvalsCertification Typeofprotection/comments

TRO

VIS

3730

-1

-110 EU type examination certificate

Number PTB 18 ATEX 2001 II 2 G Ex ia IIC T4/T6 GbII 2 D Ex ia IIIC T 85 °C DbDate 2018-10-25


Number PTB 18 ATEX 2001 II 2 D Ex tb IIIC T 85 °C DbDate 2018-10-25


Number PTB 18 ATEX 2001 II 3 G Ex nA IIC T4/T6 GcII 2 D Ex tb IIIC T 85 °C DbDate 2018-10-25


Number PTB 18 ATEX 2001 II 3 G Ex nA IIC T4/T6 GcDate 2018-10-25

-111 IECEx

Number IECEx PTB 19.0010 Ex ia IIC T4/T6 GbEx ia IIIC T85°C DbDate 2019-03-04

-511 IECEx

Number IECEx PTB 19.0010 Ex tb IIIC T85°C DbDate 2019-03-04

-811 IECEx

Number IECEx PTB 19.0010 Ex nA IIC T4/T6 GcEx tb IIIC T85°C DbDate 2019-03-04

T 8484-1 EN 5

MountingthepositionerThe positioner can be attached directly to the Type 3277 Actu-ator over a connection block. In actuators with “actuator stem extends” fail-safe action, the signal pressure is routed over an internal hole in the actuator yoke to the actuator. In actuators with “actuator stem retracts” fail-safe action, the signal pressu-re is routed to the actuator over ready-made external piping.Using the appropriate bracket, the positioner can also be at-tached according to IEC 60534-6-1 (NAMUR recommendati-on). The positioner can be mounted on either side of the con-trol valve.A pair of universal brackets is used for the attachment to Type 3278 Rotary Actuators or other rotary actuators accor-ding to VDI/VDE 3845. The rotary motion of the actuator is transferred to the positioner over a coupling wheel with travel indication.A special version of the positioner allows it to be attached ac-cording to VDI/VDE 3847. This type of attachment allows the positioner to be replaced quickly while the process is running by blocking the air in the actuator. The positioner can be at-tached directly to the Type 3277 Actuator using an adapter bracket or adapter block. Alternatively, it can be attached to the NAMUR rib of a control valve using an additional NAMUR connection block.

CommunicationThe positioner can be configured with SAMSON's TROVIS-VIEW Software (version 4). For this purpose, the positioner has a digital interface (SSP) to allow the USB port of a computer to be connected to it using an adapter cable.The TROVIS-VIEW software enables the user to easily configu-re the positioner as well as view process parameters online.

TROVIS-VIEW can be downloaded free of charge from our website at www.samson.de > Services > Software > TROVIS-VIEW.

Additionaloptions – Analog position transmitter – Software limit contacts (NAMUR) – Software limit contacts (PLC) – Inductive limit contacts

OperationThe positioner is operated with a user-friendly rotary pushbut-ton. The parameters are selected by turning the knob, pushing it activates the required setting. The menu is structured with all parameters listed one after the other on the same level. This allows users to read and change parameters at the device.All values are displayed on the LCD. The reading direction of the LCD can be rotated by 180°.To configure the positioner with SAMSON’s TROVIS-VIEW software, the positioner is equipped with an additional digital interface to be connected to the RS-232 or USB interface of a computer.

Note

Certification Typeofprotection/comments

TRO

VIS

3730

-1

-851 IECEx

Number IECEx PTB 19.0010 Ex nA IIC T4/T6 GcDate 2019-03-04

-111 CCoE

Number A/P/HQ/MH/104/6597Ex ia IIC T4T6 GbDate 2020-11-16

Valid until 2024-12-31-1

12 CCCExNumber 2020322307001506

Ex ia IIC T4/T6 GbEx iaD 21 T85Date 2020-09-18

Valid until 2025-09-17

-512 CCCEx

Number 2020322307001506Ex tD A21 IP66 T85°CDate 2020-09-18


-113 EAC

Number RU C-DE.HA65.B.00700/201Ex ia IIC T6...T4 Gb XEx ia IIIC T85 °C Db XDate 2020-08-19


-115 INMETRO

Number IEx 20.0231Ex Ia IIC T4/T6 Gb Ex Ia IIC T85°C DbDate 2021-04-30


-115 INMETRO

Number IEx 20.0231Ex Tb IIIC T85°C DbDate 2021-04-30


-115 INMETRO

Number IEx 20.0231Ex Na IIC T4/T6 GcDate 2021-04-30


6 T 8484-1 EN

Dimensionsinmm

58

164

85

85

89

28

14

40

34

212

70

34

46 15

Directattachment

AttachmentaccordingtoIEC 60534-6

Pressure gauge bracketConnecting plate

T 8484-1 EN 7

AttachmentaccordingtoVDI/VDE 3847-1ontoType 3277Actuator

AttachmentaccordingtoVDI/VDE 3847-1toaNAMURrib

62

164

200

164

164

13

6224

38

8 T 8484-1 EN

164 202

68

13

156

(167

1) )

156

(167

1) )

164

260

13

68

AttachmentaccordingtoVDI/VDE 3847-2withsingle-actingactuator

AttachmentaccordingtoVDI/VDE 3847-2withdouble-actingactuator

T 8484-1 EN 9

1) Reversing amplifiers – Type 3710 (see drawing of heavy-duty version for dimensions) – 1079-1118/1079-1119, no longer available (see drawing of light version for dimensions)

AttachmenttorotaryactuatorsaccordingtoVDI/VDE 3845

80

52

5686

130

80

166

3086

Ø101

50

80

130

4959

79

76

50

150

Heavy-dutyversion

Lightversion

Reversing amplifier 1)

Reversing amplifier 1)

10 T 8484-1 EN

Lever x y zM 25 mm 50 mm 66 mmL 70 mm 100 mm 116 mmXL 100 mm 200 mm 216 mmXXL 200 mm 300 mm 316 mm

x

zy

Lever

A

M6

C

B

25

Mmin

Ød

ØD

Fixing level 2 (bracket surface)

Fixing level 1 (actuator surface)

Actuator

DimensionsinmmSize A B C Ød Mmin D1)

AA0 50 25 15 5.5 for M5 66 50AA1 80 30 20 5.5 for M5 96 50AA2 80 30 30 5.5 for M5 96 50AA3 130 30 30 5.5 for M5 146 50AA4 130 30 50 5.5 for M5 146 50AA5 200 50 80 6.5 for M6 220 50

1) Flange type F05 acc. to DIN EN ISO 5211

FixinglevelsaccordingtoVDI/VDE 3845(September2010)

1610

...17

T 8484-1 EN 11

Electricalconnections

–12

+11

G

Connecting the mA control signal

–42

+41

–52

+51

I I

Inductive limit contact 1

Inductive limit contact 2

Terminal assignment of inductive limit contacts

–46/–92

+45/+91

–56/–94

+55/+93

E E

Software limit contact 1 (PLC/NAMUR)

Software limit contact 2 (PLC/NAMUR)

Terminal assignment of software limit contacts

–32

+31

Terminal assignment of position transmitter

Specifications subject to change without notice T 8484-1 EN 2021

-12-

17 ·

Engl

ish

ArticlecodePositioner TROVIS 3730-1- x x x 0 x x 0 x x x x x 0 0 x 9 9 9 8

With LCD and autotune

Explosion protection

Without 0 0 0

ATEX II 2 G Ex ia IIC T4/T6 GbII 2 D Ex ia IIIC T 85 °C Db 1 1 0

ATEX II 2 D Ex tb IIIC T 85 °C Db 5 1 0

ATEX II 3 G Ex nA IIC T4/T6 GcII 2 D Ex tb IIIC T 85 °C Db 8 1 0

ATEX II 3 G Ex nA IIC T4/T6 Gc 8 5 0

IECEx Ex ia IIC T4/T6 GbEx ia IIIC T85°C Db 1 1 1

IECEx Ex tb IIIC T85°C Db 5 1 1

IECEx Ex nA IIC T4/T6 GcEx tb IIIC T85°C Db 8 1 1

IECEx Ex nA IIC T4/T6 Gc 8 5 1

CCCEx Ex ia IICX T4/T6 Gb Ex iaD 21 T 85 1 1 2

CCCEx Ex tD A21 IP66 T85°C 5 1 2

EAC 1Ex ia IIC T6...T4 Gb X Ex ia IIIC T85 °C Db X 1 1 3

Option 1

Without 0

Position transmitter 4 to 20 mA 1

Option 2

Without 0

Two software limit contacts (PLC) 1

Two software limit contacts (NAMUR) 2

2x inductive limit contacts (NAMUR) 4

Electrical connection

Two M20x1.5 (one cable gland, one blanking plug) 1

Housing material

Aluminum EN AC-44300DF (standard) 0

Stainless steel 1.4408 1

Cover

With round window 1

Closed (without window) 2

Housing version

Standard 0 0

With additional vent hole and VDI/VDE 3847 adapter, without travel pick-off parts 2 0

With additional vent hole 2 1

Permissible ambient temperature

Standard: –20 to +85 °C 0

–40 to +85 °C metal cable gland 1

–55 to +85 °C, low-temperature version with metal cable gland 2

Hardware version

1.00.00 9 9

Firmware version

3.00.04 9 8

trovis 3730-1 electropneumatic positioner

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